org.apache.flink.table.planner.plan.abilities.sink.OverwriteSpec Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.flink.table.planner.plan.abilities.sink;
import org.apache.flink.table.api.TableException;
import org.apache.flink.table.connector.sink.DynamicTableSink;
import org.apache.flink.table.connector.sink.abilities.SupportsOverwrite;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonCreator;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonProperty;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonTypeName;
/**
* A sub-class of {@link SinkAbilitySpec} that can not only serialize/deserialize the overwrite flag
* to/from JSON, but also can overwrite existing data for {@link SupportsOverwrite}.
*/
@JsonTypeName("Overwrite")
public class OverwriteSpec implements SinkAbilitySpec {
public static final String FIELD_NAME_OVERWRITE = "overwrite";
@JsonProperty(FIELD_NAME_OVERWRITE)
private final boolean overwrite;
@JsonCreator
public OverwriteSpec(@JsonProperty(FIELD_NAME_OVERWRITE) boolean overwrite) {
this.overwrite = overwrite;
}
@Override
public void apply(DynamicTableSink tableSink) {
if (tableSink instanceof SupportsOverwrite) {
((SupportsOverwrite) tableSink).applyOverwrite(overwrite);
} else {
throw new TableException(
String.format(
"%s does not support SupportsOverwrite.",
tableSink.getClass().getName()));
}
}
}